I have been trying to find out how to get a black smokey effect in resin for a little while now and I just can’t find out anywhere how to do it or what ink to use. This is one of the best examples I have found to show people what I mean -https://www.etsy.com/uk/listing/837780955/black-smoke-tray?ref=related-4&frs=1 . It says they use Indian ink but I have tried that but it just goes all bubbly. I’m not sure if the technique I am doing is wrong or what. Any help or tips would be grateful thanks.